Calculating-machine.



,Lv D'. SIBGPRIED'. GALGULATING MACHINE.

APPLIOATION HLBD'JUNE so, 1911.

Patented Marg12,`1912.. v

z SHEETS-SHEET 1l I. D. SIEGFRIBD.

CALGULATING MACHINE.

l 4APIBLIUATION FI'LED JUNBBO, 1911. 1,'019,996 Patented Man 12,1912.

2 SHEETS-SHEET 2.

'INVENTOR V IRA n SIEGFRIED, or` CLEVELAND, oHIoff` j Specicatioii of Letters Patent I i Patented Martvv 312.

Application filed June 30. 1911. Serial No. 636,305.

T o all whom-it may concern:

Be it known that I, IRA D. Eisenman, a citizen of the-'United States, residing at Cleveland, in the county of. Cuyahoga and State of Ohio. have'invented a certain new and useful Improvement in Calculating- Machines, of which the following is a full, clear, and exact description.

' The object of this invention is a simple, com actand easily operated cal culating machine, on which results in addition, subtraction, multiplication and divi'- sion, but more especially addition, may be readily and accurately registered or indicated to any desired amount.

,. Tlie invention consists in a series of rotary dials inclosed in a' casing and each having `isa. topv plan view,

its vown window or exposure opening in the f l@case with a separate numeral exposing window; these dials being turned bythe operator through the medium of a pencil point or 'other instrument to register the result of' the operat-ion in dollars and cents, or other units, to any amount, and being so connected 'and arranged as to respond to a manually 'operated resetting mechanism to rearrangel a l of the dials at zero for 4another operation, all as I will proceed now more particularly to explain and finally claim.

several'. figures of which like parts are similarly designated, Figure l is a top plan View. of a complete machine adapted tocalculate into hundreds of thousands of view with the outer casing removed. Fig. 3 is a front elevation, casing omitted. Fig. 4 on a larger scale, casing removed, showing several of the dials and their coacting advancing mediums. Fig. 5

is an end elevation, partly in section, casing o, .but vshowing stead of canted, as it would naturally be and' the device horizontal inasshown in Fig. 10.4 Fig. 6 is an elevation of--one of the ing .plate in section.l Fig. 7 is a plan view oftheA camfoperating plate, with thecam in positionand a dial in dotted lines. Fig. 8 is a cross-section, on a Vlarger scale, of the cam-operating plate, showing a part of the cam in elevation.- Fig. 9 is a plan view of part of the main'or dial plate. Fig." 10 i's-an end view on the sa'me scale as Figs. 1 to designedto show the cantedor tilted posi- .55.tion ofuse.

Without thereby lniiitingthe .invel'lflon t0;

to provide In the accompanying .drawings illustrat-v ing theA invention, in the dollars. Fig.' 2 isa' top plan counters, with the camfoperat-- dials at attache the details shown, or to a machine of the specific construction and capacity or .function herein explained, Iwill proceed to cxplain .the construction shown in the drawings. v

A base-plate 1, on which the parts arc mounted, has a flange 2 on its front edge which serves to cant the machine -so as to accommodate the users eyes andas a guide on'a ledger or lother account book or device as the machine is moved thereon. Above this base-plate is a fixed main or dialplate 3, supported upon the base plate by posts 4 rising from the base plate.' and secured to both. Between the base-plate and the mainplate is a movable plate 5, which has Jfas.- tened to it four,-moreor less, rods 6, which project vup through holes in the dial plate and receiv'ea bar 7.v

Stepped inthe base-plate 1, shown more particularly in Fig. 5, are two series of rotary shafts 8 and 9,which extend up through similar slots 10 and 11 in the front and'rear of plate 5, to receive the dials and the dialactuating mechanism, as presently described. The shafts .9 have longitudinal play in their step sockets so as to be vertically movable in ordertoreset the dials on shafts 8,:as hereinafter explained.

The plate 5 is normally pressed toward the plate 3 by means of any number of coiled springs 12 supported by the posts 6 or any number of them, and so as to holdthe plate 5 normally-free of certain cams 13 and 14 on the shafts 8 and 9, respectively, during the operation of the dials in counting 'or calculating. The cams 1 3 and 14 are tubular vin form and surround the shafts 8 and 9,

excepting that at their lowest points the recess or groove 15 is made in each cam, and these cams arefiXed to and turn with the shafts. The' slots 10 in the movable plate 5 resemble-key-hole slot-s, and their circular ends are provided with tongues 16 slightly depressed below the level of ,the'p1ate, and having their underside chamfere'd off or beveled, as shown more particularly in Fig. 8, so that'when said plate 5. is depressed by pressure upon the barl 7 against the tension of the springs 12, the tongues l16 will ride upon the cams and so rotate the shafts and .restore the shafts to their normal position, which, asv vwill presently appear, is

with the zero. ..Inasinuchas the plate 5 is al1 Vof the Ivcams that` .en .in .the

im haar its-length,

operation of calculating will be restored to the zero position simultaneously. The tongues 16 are depressed so as to be arrested by the base-plate before it is possible for them to escape from the' cams.

The slots'l in the plate 3 through which the shafts 8 and 9 extend, are plain straight slots,see Fig. 9-ending in curves to conform substantially to the circumference of the shafts. I

` Upony the shaftsS are fixed collars 18, which are located onv the underside of the platel 3, and above these collars are other collars 19 supported on the upper surface of the vplate Inl other words, the shafts engage opposite sides of the plate 3, and I prefer to interpose between the plate and the collars 19 tension springs 20 which have an upward pressure. On the first, third, and every alternate shaft 8 is a disk. 21, having ten spurs or teeth 22 projecting radially from its periphery,r and above these disks are dials 23 in which are holes or cavities 24 to receive a pencil point or other implement by which the dials and shafts and connected parts are rotated. On. the alternate shafts between the first, third, and succeeding shafts are disks 25 which are surmounted by the dials 26 supplied with holes 24 as before, and these dials 26 are provided with ten peripheral spurs or teeth 22. Of course, the disks 25 mightbe .omitted and any suitable spacerplac'ed between the fixed plate 3 and the dials 26, so as to raise said,

dials to the proper elevation abpve the fixed plate 3. The point is that each alternate spurredv or toothed element is arranged in a diierentplane. and this so las to permit an arrangement vof operating mechanism whereby the dials will be successively operated to proceed from cents to dimes and from dimesY to dollars. etc., or to meet any other system of enumeration. lOn the dials 23`and 26 are arranged numerals fromvone to zero, corre spending numerically to `the spurred or toothed element on lthe several shafts v8.

The cover or casing 27 is of a' size and shape to inclose the dials and their appurtenances, leircepting that openings or windows 28 are made of a size to expose the' rows of holes 24k in the several dials, and each of these windows or openings 28 is provided with a window or sight opening 29 in line with and to exposethe numerals on' the dials one at a time, and these thus exposed numerals give the results of the successive calculations made 'on the machine.

` In order to connect the lvarious dials in;

working series. the shafts 9- are provided with. disks 30 having-peripheral spurs corresponding in number and location with-the spurs on the spurredfelements on the respective shafts 8; and these disks 30v areprovided with pawls 31 having Vsprings 32, said pawls projecting into the paths of movement of the successive spurred elements on the dial shafts. That is to say, the pawl on the disk arranged bet-Ween the dial shaftsfor dimes and cents would be onthe upper surface of the disk so as to be in line with the teeth on the periphery of the dimes dial, whilethe pawl on the next adjacent-shaft would be on the lower side of the disk so as to be in line with the teeth onthe toothed disk beneath the dial of thedollars dial, and so on alternatelyl Y l The shafts 9 are normally lifted by pressure of the springs 33, and in order to equalize the pressure of these springs, the springs 34 are interposed 'between the plates 5 and 3 on theopposite side, that is toI say,v on' the side with the dials. This equalization of the pressure ofthe springs prevents the resetting' mechanism from being cramped or binding. As already indicated, the shafts 9 arel providedwith cams, and the holes 10 in the plate f5 are alike for the shafts 9 and the shafts .8.

It will be observedthat the springs act-ing upwardly lupon the disks of the several shafts 8 and 9serve to keep thefspurred ele ments on the shafts 8 and the pawls on the lshafts 9 in line, and consequently motion is appropriately transmitted from the `cents dial to the dimes dial and from that to the dollars dial, and"s0 on.

When the -end of a calculationis'reached, and yit is desired to reset the machine for a fresh operation, 'downward pressure'- is ex-v yerted upon the bar 7, the first result of which is to release. the upward pressure of .the 'springs against the shafts 9, followed by the dropping of the 'disks on these'shafts to a` common level ony the fixed plate, resulting in taking their teeth out of enga ement with the teeth of the disks on the sha s8-and the pawls on thevshafts' 9 out .o fline with the spurred elements on shafts 8', and then, upon a further descent of the bar 7 'and attached plate 5, the tongues 16 on .these plateswill become operative upon the cams. on. the shafts 8 and rotate these shaftsl so as vto bring their dials uniformly back to zero. Mean"- .while, the tonguesl in the holes 1Q opposite ,the cams 14 o n the shafts 9 will rotatethese. shafts so asl to present their' .pawls iin the proper position to engage the dials in the .next 'succeeding operation tou advance kthe dials iny proper` order.

As shown in Fig; 1, the windows 2.8- may i be and preferably are surrounded 4by numere als from 1.to 9, which are appropriately llo'- cated relatively tothe numerals onthe counting elements and the holes 261:` in said elements, -to lguidethe .operator in placing the operating pencil inthe hole. correspondingto the number to be used.

The casing'is providedwith a stop element `35 extending alongside each' sight open- 413 o ing 2 9 to arrest the pencll drlother operating when the desired vnumeral is exposed, or, in

,other-Words, when the counting element has been rotated into proper relation. It is to be vunderstood that my machine may be, by slightv change, converted intoa` counter for automatically 'registering the number of articles produced by a machine. To this end, the resetting.mechanism'might be locked against unauthoriaed or fraudulent operation, and the frame around the initial dial opened to expose a tooth of thatdial to be connected up with the press or. other machine Whose 'product or output is to be counted.

I have thus described one embodiment of the principleof my invention, but Wish to be understood as not limiting the invention to mere details, since these may be varied Within the scope of the claims.

Vvvhat Ivclaim is v Y l. A- calculating machine, having a series of successively operating dials, rotary shafts upon which these dials are fixed, successively operating dial-actuating means, rotary shafts upon which they are mounted, cams on all of the shafts, a cam-actuating plate in open ative engagement with the several shafts, and means to move said plate lengthwise of the shafts so as to cause its cam-actuating element to act upon the cams on the shafts to reset the several shafts and their appurtenancesafter said shafts have been t-urned `in making the calculation.

2. A calculating machine, having a series of successively operating dials With spurred or toothed elements located at different heights, rotary shafts 'and cams thereon, said dials adapted to be operated manually, a complemental series of dial-actuating devices including spurred disks, and pawvls thereony to engage the spurs or teeth of said4 operat-ingdials, rotary cam shafts adaptedv to be moved' longitudinally and on which the dial-actuating devices are mounted, and

means to thus move said shafts to throw the dial-actuating devices into and out of engagement VWith said operating dials.

3. A calculating machine, having a series of successively operating dials provided vvithl toothed elements, rotary shafts upon Which the dials are fixed, a. series'of successively operating dial-actuating toothed disks carrying pavvls, rotary` shafts on which said disks are fixed and having longitudinal movements to bring their disks into and out of engagement with the toothed elements of the dials, cams, on all of said shafts, and a movable plate in Which the several shafts are, arranged and having cam -actuating tongues.

4. .A calculating machine, having a'series of successively operating dials provided with the vdials are fixed, a series of successively .A operating l, dial-actuating ,toothed krfdisks.,k carrying lpawls, rotary `shafts on which .said disks Vare 'fixed andhaving longitudinal movements ,to bring their disks into Vand out of engagement' With the toothedelements of the' dials, cams o`n alllof'said shaftsl,a mov able plate in which the several shafts are arranged and having cam-actuating tongues, and, springs normally holding said plate out of engagement with the cams.

Acalculating machine, having a series of successively operating dials provided with toothed elements, rotary shafts upon which the dials are fixed, a series of successively operating dial-actuating toothed disks carrying pawls, rotary shafts on which said disks are fixed and having longitudinal movements to bring their disks into and out lof engagement with the toothed elements of the dials, cams on all of said shafts, a movable plate in which the severalshafts are arranged and having cam-actuating tongues, springs normally holding said plate out of engagement with the cams, and a bar secured to said plate by which pressure may be applied to the plate to first clear the dials from their actuating devices, and thenv engage the cams and reset the shafts, after which the springs are free to act to release the shafts for a fresh calculation. o

6. A calculating machine, having a series of successively operating dials provided with toothed elements, rotary shafts upon which the dials are fixed, a .series of successively operating dial-actuating toothed disks carrying pawls, rotary shafts on which said disks are fixed and having longitudinal movements to bring their disks into and out of engagement with the toothed elements of the dials, 'cams on all of said shafts, and a movable plate'l in which the several shafts are arranged and having camsactuating tongues, said tongues being beveled and depressed.

' 7. A calculating machine, having a series of successively operated dials provided with toothed elements, a fixed dial plate inwhich said dials are arranged, springsinterposed between the dials and dial-plate, rotaryy shafts upon which the dials are fixed, a series of successively operating dial-actuating toothed disks vcarrying pavvls, rotary shafts on which said disks lare `fixed and having longitudinal movements to bring theirfdisks into and out of engagement with the toothed elements of the dials, cams on all of said shafts, and a movable plate in which the several shafts are arrangedl and having cam-actuating tongues. 8, A calculating machine, having a series of successively operated dials provided with toothedelements, 'a fixed dial plate inA which said dials are arranged, rotary shafts upon d. A' y 1,019,996

carrying pawls, rotary shafts on which said plate and movable plate and in engagement disks are xed and having longitudinal with the several shafts. 10 movements to bring their disks into and out In testimony whereof I have hereunto setof engagement with the toothed elements of my hand this 24th day of June A. D. 1911.

the dia-ls, cams on all of said shafts, and a IRA D. SIEGFRIED. ymovable plate in'wvhieh the several shafts are Witnesses: arranged and having cam-actuating tongues, F. V. FAULHELER,

and springs interposed between the dial ANNA W. MoLIToRE. 

